modulating wave
英 [ˈmɒdjuleɪtɪŋ weɪv]
美 [ˈmɑːdʒəleɪtɪŋ weɪv]
网络 调变波; 调制波
双语例句
- Direct digital synthesis is used for modulating the frequency and amplitude of the square wave.
此方法利用直接数字合成技术完成对方波的频率和振幅的调整。 - Based on the study of working principle of traditional sine pulse width modulator, a new SPWM modulating method by dual-square wave composing technology is presented in this paper.
提出了一种用双方波合成技术实现的SPWM新方法，该方法可以简化硬件电路、减少运算时间。 - The results show that the induction heat power of magnetic field amplitude-modulated with sine wave and square wave is unrelated to the frequency of modulating wave.
结果表明：方波和正弦波调幅磁场的感应热功率都与调幅波频率无关。 - Nonlinear modulating solitary wave on an elastic pipe-wall
弹性管壁的非线性调制孤波 - The modulating wave. Constellation Diagram and power spectrum density curve is observed by simulation.
通过仿真观察到调制与解调信号的波形，星座图以及QAM信号功率谱密度曲线，并对仿真结果进行了分析。 - A novel planar leaky-wave antenna of conductor modulating periodic structure for millimeter wave application is proposed.
一种新型的导体调制周期介质平面天线在毫米波段的应用业已提出，并进行了系统的研究。 - It will give patients treatment by means of the amplified amplitude modulating wave current that can be obtained form medium frequency amplitude modulated by the low frequency pulse signal.
它将有关低频脉冲信号对中频调幅后，利用被放大的调幅波电流对人体进行治疗。 - The carrier frequency of medium frequency electricity was 4 kHz with modulating frequency of 100 Hz in manner of continuous wave, the electric current of medium frequency was 2 mA and acting time of 10 min.
中频电载波频率4kHz，调制频率100Hz，采用连调波型，中频电流为2mA，作用时间为10min。 - Utilizing the technology of autocorrelation, random signal was chosen as the modulating wave, which can solve the problem of adaptability for simulating waves to body.
运用自相关技术，筛选随机信号作为调制波，解决电刺激波形对机体适应性问题。设计并研制了可供临床实验的治疗仪样机。 - But for distributed faults, if modulating wave has single frequency, there is only one sideband in both sides of meshing frequency f m and its doubling frequency 2f m respectively.
而对于分布故障，若调制波为单频，则理论上只在啮合频率fm和它的2倍频2fm两侧各形成1个边带； - When the modulator ( or optical chopper) of the NIR spectrophotometer was error, the frequency and shape of modulating wave would be changed, and the measuring signal of the spectrophotometer must be smaller.
调制器的误差会引起调制波频率和形状的变化，从而影响近红外光谱仪器检测信号的强度。 - To explore the effects of a low-frequency modulating magnetic field on the brain wave rhythm, the neurotransmitters in Wistar rat brains were detected and the nerve synapses of the rats were observed through an electronic microscope.
为揭示低频调制磁场对脑电节律产生影响的微观作用机理，检测了Wistar大鼠脑内神经递质的释放，电镜下观察了其神经突触形态的变化。 - If modulating wave has secondary harmonic, there are two sidebands in both sides of meshing frequency f m and its doubling freqency 2f m.
若调制波含有2次谐波，则在啮合频率fm和它的2倍频2fm两侧各形成2个边带。 - In the first stage, the amplitude sequence of modulating signal is generated by addressing waveform memory and added by the frequency value of carrier wave in the adder. The parallel output of the adder is served as the frequency control word of the second phase accumulator.
在第一级寻址结构中产生的调制信号幅度序列和载波频率值在加法器中相加，并将相加的结果作为第二级相位累加器的频率控制字； - Modulating the ultrasonic wave, intensity and period of the light pulse will change.
调节超声波，可改变光脉冲的强度和周期。 - Results: According to these phenomena, electronic modulating T wave change and ventricular fusion wave were all the normal change of pacing electrocardiogram, and both pacing and sensing disfunctions were the characteristic of pacemaker malfunction.
结果：正常起搏心电图中可见室性融合波、手风琴现象及电张调整性T波改变，起搏器功能障碍表现为起搏与感知功能异常。 - Therefore making diagnosis of the local defect needs to demodulate the vibration to get the modulating wave.
因此要进行滚动轴承缺陷诊断，必须先采用一定的解调技术提取调制波。 - The transmitting module of signal optical including such as optical generating, modulating, emitting and keeping optical wave stabilization, is very important in optical communication system.
信号光发射部分是光通信系统中不可或缺的，它直接担负着信号光的产生、调制和发射以及波长的稳定等一系列任务，在整个光通信系统中起重要作用。 - Through the simulation analysis of OFDM system by MATLAB, the author probes into the influence from modulating reflection, protection interval and sub-carrier wave on OFDM system, which is quite significant to the designing process of OFDM system.
通过MA7LAB软件对OFDM系统进行了仿真分析，研究了调制映射，保护间隔和子载波对OFDM系统的影响。这在实际OFDM系统设计的过程中非常重要。 - Furthermore, when the reset voltage of two π is inaccurate or the transient spikes is existed in modulating signal, the overlap between the ramp wave and square wave may bring the deadband.
同时，调制器当2π复位电压不准确或者解调信号存在尖峰脉冲时，阶梯波与方波的数字叠加，也容易出现较大死区。 - Mechanism of the Influence of Low Frequency Modulating Magnetic Field on Brain Wave Rhythm
低频调制磁场对脑电节律的影响机理 - The detailed principles and parameters of each analog circuit for modulating wave are discussed and the control flow is also introduced. The spectra of the PWM signal produced by DSP with frequency jittering are presented to verify the calculation results.
本文详细地讨论了各模拟调制波形电路的产生过程和参数以及数字调制的流程，给出了由DSP产生的抖动频率的PWM波的测量频谱并进行分析。